Almost immediately he set out again for California by the previous route, and in 1827 reached the San Jose mission. Here he was arrested by the Spanish authorities and sent under guard to Monterey, where another Yankee skipper secured his release. Wintering once more in California, this time on the American Fork, he reached the coast in the spring of 1828, and followed the Umpquah River towards the Oregon country. While he was absent, his camp was attacked by the Indians and fifteen of his men killed. Absolutely alone, Smith worked his way through the forest to Fort Vancouver, where he enjoyed the hospitality of Dr. McLoughlin through the winter. In the following spring he ascended the Columbia to the Hudson Bay posts among the Flatheads, and made his way in the summer of 1829 to the rendezvous of his company at the Tetons. In three years this daring trader, braving the horrors of the desert and passing unscathed from Indian attacks which carried off most of his companions, opened to knowledge much of the vast country between Great Salt Lake and the Pacific. [Footnote: H. H. Bancroft, California, III., 152-160, citing the sources.] In 1831, while on the Santa Fe trail, Smith and his companions lost their way. Perishing with thirst, he finally reached the Cimaron, where, as he was digging for water in its sandy bed, he was shot by an Indian.
Thus the active men of the Rocky Mountain Fur Company, in the decade between 1820 and 1830, revealed the sources of the Platte, the Green, the Yellowstone, and the Snake rivers, and the characteristics of the Great Salt Lake region; they pioneered the way to South Pass, descended Green River by boat, carried cannon into the interior basin; showed the practicability of a wagon route through the Rockies, reached California from Salt Lake, crossed the Sierras and the deserts of Utah and Nevada, and became intimately acquainted with the activity of the British traders of the northwest coast. [Footnote: Chittenden, Am. Fur Trade, I., 306.]
Already an interest in Oregon and the Rocky Mountain region was arising on the eastern seaboard. In 1832, Captain Bonneville, an officer in the United States army, on leave of absence, passed with a wagon-train into the Rocky Mountains, where for nearly three years he trapped and traded and explored. [Footnote: Irving, Bonneville.] Walker, one of his men, in 1833, reached California by the Humboldt River (a route afterwards followed by the emigrants to California), and made known much new country. A New England enthusiast, Hall Kelley, had for some years been lecturing on the riches of the Oregon country and the need of planting an agricultural colony there. It was natural that Boston should be interested in the Oregon country, which was visited by so many vessels from that port. In 1820, New England missionaries settled in the Hawaiian Islands, closely connected by trade with the coast. In 1832, Nathaniel Wyeth, of Cambridge, Massachusetts, led a party of New-Englanders west, with the plan of establishing a trading and fishing post on the waters of the Columbia. [Footnote: Chittenden, Am. Fur Trade, I., 435; Wyeth's "Journals" are published by the Oregon Hist. Soc.; cf. Irving, Bonneville, chap. vi.]
With Wyeth, on a second expedition in 1834, went the Reverend Jason Lee and four Methodist missionaries. Two years later came Dr. Marcus Whitman and another company of missionaries with their wives; they brought a wagon through South Pass and over the mountains to the Snake River, and began an agricultural colony. Thus the old story of the sequence of fur-trader, missionary, and settler was repeated. The possession of Oregon by the British fur-trader was challenged by the American farmer.
Contemporaneously with the development of the fur-trade in the Rocky Mountains, a trade was opened between St. Louis and the old Spanish settlements at Santa Fe. Although even in the days of Washington adventurous frontiersmen like George Rogers Clark had set their eyes on Santa Fe and the silver-mines of the southwest, it was not until the Mexican revolution (1821), when Spain's control was weakened throughout her whole domain, that systematic trade was possible. In 1822, Becknell, of Missouri, took a wagon-train to Santa Fe, to trade for horses and mules and to trap en route. Year after year thereafter, caravans of Missouri traders found their way across the desert, by the Santa Fe trail, with cottons and other dry-goods furnished from St. Louis, and brought back horses, mules, furs, and silver. The trade averaged about one hundred and thirty thousand dollars a year, and was an important source of supply of specie for the west; and it stimulated the interest of St. Louis in the Mexican provinces. The mode of handling the wagon—trains that passed between Missouri and Santa Fe furnished the model for the caravans that later were to cross the plains in the rush to the gold-fields of California.[Footnote: Gregg, Commerce of the Prairies; Chittenden, Am. Fur Trade, II., chap. xxix.] By 1833 the important western routes were clearly made known.[Footnote: Semple, Am. Hist. and its Geographic Conditions, chap, x.] The Oregon trail, the Santa Fe trail, the Spanish trail, and the Gila route [Footnote: Personal Narrative of James O. Pattie; H. H. Bancroft, Hist. of California, III., 162.] had been followed by frontiersmen into the promised land of the Pacific coast and the southwest. In the course of ten years, not only had the principal secrets of the topography of the Rocky Mountains, the Great Basin, the passes across the Sierra Nevadas been revealed, but also the characteristics of the Spanish-American settlements of California and the Rio Grande region. Already pioneers sought Texas, and American colonization was preparing for another and greater conquest of the wilderness.
The interest of the United States government in the far west in this period was shown in exploration and diplomacy. Calhoun projected an extension of the forts of the United States well up the Missouri into the Indian country, partly as protection to the traders and partly as a defense against English aggressions. Two Yellowstone expeditions [Footnote: Chittenden, Am. Fur Trade, II., 562; Long's Expedition (Early Western Travels, XIV.-XVII.).] were designed to promote these ends. The first of these, 1819-1820, was a joint military and scientific undertaking; but the military expedition, attempting to ascend the Missouri in steamboats, got no farther than Council Bluffs. Mismanagement, extravagance, and scandal attended the undertaking, and the enterprise was made an occasion for a political onslaught on Calhoun's management of the war department.
The scientific expedition, under Major Long, of the United States Engineering Corps, ascended the Missouri in the Western Engineer, the first steamboat which navigated those waters above St. Louis—a stern-wheeler, with serpent-mouthed figure-head, through which the steam escaped, bringing terror to the savages along the banks. The expedition advanced far up the South Platte, discovered Long's Peak, and camped near the site of Denver. Thence the party passed to La Junta, Colorado, whence it broke into two divisions, one of which descended the Arkansas; the other reached the Canadian River (which it mistook for the Red) and descended to its junction with the Arkansas. The effort to push the military power of the government to the mouth of the Yellowstone failed, and the net result, on the military side, was a temporary post near the present site of Omaha.
The most important effect of the expedition was to give currency to Long's description of the country through which he passed as the "Great American Desert," unfit for cultivation and uninhabitable by agricultural settlers. The whole of the region between the Missouri River and the Rocky Mountains seemed to him adapted as a range for buffalo, "calculated to serve as a barrier to prevent too great an extension of our population westward," and to secure us against the incursions of enemies in that quarter. [Footnote: Long's Expedition (Early Western Travels, XVII.), 147, 148.] A second expedition, in 1825, under General Atkinson and Major O'Fallon, reached the mouth of the Yellowstone, having made treaties with various Indian tribes on the way.
In the mean time, Congress and the president were busy with the question of Oregon. By the convention of 1818, with Great Britain, the northern boundary of the United States was carried from the Lake of the Woods to the Rocky Mountains, along the forty-ninth parallel. Beyond the mountains, the Oregon country was left open, for a period of ten years, to joint occupation of both powers, without prejudice to the claims of either. Having thus postponed the Oregon question, the secretary of state, John Quincy Adams, turned to his Spanish relations. Obliged by Monroe to relinquish our claim to Texas in the treaty of 1819, by which we obtained Florida, he insisted on so drawing our boundary-line in the southwest as to acquire Spain's title to the Pacific north of the forty-second parallel, and to the lands that lay north and east of the irregular line from the intersection of this parallel with the Rocky Mountains to the Sabine. Adams was proud of securing this line to the Pacific Ocean, for it was the first recognition by an outside power of our rights in the Oregon country.[Footnote: Treaties and Conventions (ed. of 1889), 416, 1017; Babcock, Am. Nationality (Am. Nation, XIII.), chap, xvi.; J. Q. Adams, Memoirs, IV., 275.]
Although Russia put forward large and exclusive claims north of the fifty-first parallel, which we challenged, the contest for Oregon lay between England and the United States. At the close of 1820, Floyd, of Virginia, moved in the House of Representatives to inquire into the feasibility of the occupation of the Columbia River; and early the next year [Footnote: Annals of Cong., 16 Cong., 2 Sess., 945; J. Q. Adams, Memoirs, V., 238, 243-260.] a committee report was brought in, discussing the American rights. Floyd's bill provided for the military occupation of the Columbia River, donation of lands to actual settlers, and control of the Indians. No vote was reached, however, and it was not until the close of 1822 that the matter secured the attention of Congress.